Staff Reporter

Two plants to be operational in a month; trial runs on

HYDERABAD: The Sewage Treatment Plants of Mir Alam Tank and Pedda Cheruvu, whose trial runs had commenced a few months ago, would become fully operational within a month.

The trial runs of the two 10 million litres per day (MLD) STPs are being carried out to test the components of sewage and to obtain the required parameters for decomposing the nutrient material nitrates and phosphates. The stabilisation of treatment process i.e. getting the parameters of set standards would take 30 to 90 days. Only then the treated sewage water would be fit for discharge into the lake to improve the water quality. That's when the STPs would be declared fully operational, said HUDA Chief Engineer Vivek Deshmukh. The untreated excess sewage would be diverted from the lake through diversion channels into the Musi downstream.

The trial runs for the Durgam Cheruvu STP in Serilingampally would commence on March 15 and would become operational before monsoon, he said.

While the 5 MLD STP would take care of the sewage generated from nearby residential areas the surplus sewage generated upstream in future would have to be diverted downstream through sewer lines.

Excess sewage is expected to be 20 MLD by 2020. So HUDA has been asked to plan for the sewer lines, diversion channel and pumping station for handling the excess 15 MLD. He disclosed that the Metro Water Works would execute the work, estimated to cost Rs.40 crores.

Most polluted

Mir Alam tank in Rajendranagar, Pedda Cheruvu in Kapra and Durgam Cheruvu were among the 18 highly polluted lakes identified for restoration under the Green Hyderabad Environment Programme (GHEP) of HUDA. HUDA had earlier restored Safilguda, Saroornagar and Langar Houz lakes.